Pronunciation: /ˌkwɪn.toʊˈdɛk.əl/
Definition:
1. The ordinal number symbol: 50.
2. The position in a sequence following the forty-ninth (quadeco-nonal) element; the fifth in the sixth decade (50s series).
3. Pertaining to a group, set, or division of fifty parts or members; a jubilee or semicentennial unit.
4. Denoting a half-century period, golden (aureate) anniversary, or quinquagenary milestone.
Significance:
• It defines the fiftieth (quintodecal) position with systematic regularity and clarity.
• It emphasizes semicentennial celebrations, quinquagenary periods, and fifty-part divisions.
• It identifies golden (aureate) anniversaries, jubilee years (anes), and half-century historical markers.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in anniversary, historical, and organizational contexts.
• It improves precision in commemorative, demographic, and temporal systems involving the number fifty (quintodeco).
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms with a consistent Latinized ordinal form.
Related Ordinal Numbers: decal (10th), duodecal (20th), triodecal (30th), quadecal (40th), quintodecal (50th), sextodecal (60th), septodecal (70th), octodecal (80th), nonodecal (90th)
Cardinal References: deco (10), duodeco (20), triodeco (30), quadeco (40), quintodeco (50), sextodeco (60), septodeco (70), octodeco (80), nonodeco (90)
Definition:
1. The ordinal number symbol: 50.
2. The position in a sequence following the forty-ninth (quadeco-nonal) element; the fifth in the sixth decade (50s series).
3. Pertaining to a group, set, or division of fifty parts or members; a jubilee or semicentennial unit.
4. Denoting a half-century period, golden (aureate) anniversary, or quinquagenary milestone.
Significance:
• It defines the fiftieth (quintodecal) position with systematic regularity and clarity.
• It emphasizes semicentennial celebrations, quinquagenary periods, and fifty-part divisions.
• It identifies golden (aureate) anniversaries, jubilee years (anes), and half-century historical markers.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of order in anniversary, historical, and organizational contexts.
• It improves precision in commemorative, demographic, and temporal systems involving the number fifty (quintodeco).
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms with a consistent Latinized ordinal form.
Related Ordinal Numbers: decal (10th), duodecal (20th), triodecal (30th), quadecal (40th), quintodecal (50th), sextodecal (60th), septodecal (70th), octodecal (80th), nonodecal (90th)
Cardinal References: deco (10), duodeco (20), triodeco (30), quadeco (40), quintodeco (50), sextodeco (60), septodeco (70), octodeco (80), nonodeco (90)
Examples:
• "The institution celebrated its quintodecal anniversary with a gala event."
• "The study surveyed participants in the quintodecal age demographic."
• "Adjust the quintodecal parameter to schedule the semicentennial system review."
• "This edition marks the quintodecal volume in the academic journal series."
• "The treaty experienced its quintodecal mandatory review this year (ane)."
• "The institution celebrated its quintodecal anniversary with a gala event."
• "The study surveyed participants in the quintodecal age demographic."
• "Adjust the quintodecal parameter to schedule the semicentennial system review."
• "This edition marks the quintodecal volume in the academic journal series."
• "The treaty experienced its quintodecal mandatory review this year (ane)."
by Dmitrio December 15, 2025
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